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| ORIGINAL RESEARCH |
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| Year : 2009 |
Volume
: 20 | Issue : 2 | Page
: 174-179 |
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Tensile bond strength of composite luting cements to metal alloys after various surface treatments
Saip Denizoglu1, Cem S Hanyaloglu2, Bunyamin Aksakal3
1 Department of Prosthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey
2 Department of Mechanical Engineering, Faculty of Engineering, Akdeniz University, Antalya, Turkey
3 Department of Mechanical Education, Faculty of Technical Education, Firat University, Elazig, Turkey
Correspondence Address:
Saip Denizoglu
Department of Prosthodontics, Faculty of Dentistry, Yeditepe University, Istanbul
Turkey
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0970-9290.52896
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Aims: To evaluate the effects of two different surface treatments and bonding agents on tensile bond strength between a Co-Cr and a Ni-Cr cast alloy and two resin-luting cements.
Materials and Methods: Two hundred and forty alloy samples were cast and subjected to surface treatments such as sandblasting, chemical etching, and sandblasting plus chemical etching. Panavia F and CandB cement were used as cementing mediums. The etching qualities were examined by a stereooptic microscope. Failure surfaces were examined throughout scanning electron microscopy. The data were evaluated using statistical methods, namely analysis of variance and multiple comparison test (Tukey HSD).
Results: Significant differences were found in the bonding provided by the various cements (P < 0.001) and also type of surface treatments (P < 0.001). For all groups, sandblasted surfaces showed the highest bond strength values. There was no significant difference between the Cr-Co and the Cr-Ni alloys (P > 0.05).
Conclusions: Panavia F showed higher tensile strength and the sandblasted samples possessed higher tensile strength. |
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